DevOps Interview Questions 2026
Published July 22, 2026 · Updated July 22, 2026
3 DevOps interview questions from Netflix, Deloitte. All difficulty levels, all roles. Upvoted by engineers who were asked them.
3 questions
Companies: Netflix, Deloitte
78 upvotes
DevOps Questions by Company
Netflix (2)
Netflix popularized "chaos engineering" — explain what problem it actually solves that traditional testing doesn't, and how you would introduce it safely into a system that has never done it before.
Explain the difference between a blue-green deployment and a canary deployment. When would you choose canary over blue-green?
Deloitte (1)
What is the difference between monitoring and observability? Give a concrete example of a production issue that good monitoring alone would miss but observability would catch.
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Netflix popularized "chaos engineering" — explain what problem it actually solves that traditional testing doesn't, and how you would introduce it safely into a system that has never done it before.
Netflix popularized "chaos engineering" — explain what problem it actually solves that traditional testing doesn't, and how you would introduce it safely into a system that has never done it before.
Explain the difference between a blue-green deployment and a canary deployment. When would you choose canary over blue-green?
Explain the difference between a blue-green deployment and a canary deployment. When would you choose canary over blue-green?
What is the difference between monitoring and observability? Give a concrete example of a production issue that good monitoring alone would miss but observability would catch.
What is the difference between monitoring and observability? Give a concrete example of a production issue that good monitoring alone would miss but observability would catch.